text.js

function doThingsWithItems(callback) {
  var items = ["foo", "bar", "baz"];
  var remaining = items.length + 1;
  var d = domain.create();  
  
  d.run(function () {
    items.forEach(function(item) {
       doSomethingErrorProne(function() {
         remaining -= 1;
         if (remaining == 0) {
           d.dispose();

           callback(null);
         }
      });
    });
  });

  d.once('error', function (err) {
    d.dispose();
    callback(err);
  });
}

doThingsWithItems(function (err) {
  // not in a domain
  console.log(domain.active === undefined);
});